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Dialog / Why do some stars in the galactic center survive while others are destroyed?
The center of our galaxy is an extreme place. Surrounding the supermassive black hole Sagittarius A*, stars are packed densely into a region where gravity, radiation, and dark matter all interact in complex ways. It is a ...
Phys.org / Satellites reveal city methane emissions are rising faster than official estimates
Urban emissions of methane—a potent greenhouse gas—are rising faster than bottom-up accounting estimates anticipated, according to a study led by University of Michigan Engineering. The discrepancy was found with satellite ...
Phys.org / New 'molecular handle' uses common amino acid to build complex medicines
In a new study published in Nature Communications, a team of chemists has unveiled a radically simple way to attach a highly sought-after "molecular handle," known as the dichloromethyl group, onto complex compounds. Instead ...
Phys.org / See and hear galaxies evolve from the dawn of the universe
The most realistic picture yet of how galaxies formed and then evolved from the beginning of time has been revealed in a suite of new and unique audiovisual simulations. These data, accepted for publication in the Monthly ...
Phys.org / Museum fossil reveals that extinct giant echidnas once roamed Australia
Paleontologists have used an Ice Age fossil found 120 years ago in an underground cave to reveal that extinct giant echidnas roamed southeastern Australia during the Pleistocene Epoch, filling a major knowledge gap in the ...
Medical Xpress / Fluoride and kids' IQ: What a decades-long analysis shows
Fluoride is a naturally occurring mineral that has been shown to strengthen teeth and reduce cavities. Many municipalities add fluoride to their drinking water—a process called community water fluoridation—as a public health ...
Phys.org / Astronomers find evidence for three subpopulations of merging black holes
Astronomers analyzing gravitational-wave data from the LIGO-Virgo-KAGRA Collaboration have reported that merging binary black holes fall into three distinct categories. The study shows that the three subpopulations have their ...
Phys.org / Tiny crystal defects solve decades-old mystery in organic light emitters
Materials that emit and manipulate light are at the heart of technologies ranging from solar energy to advanced imaging systems. But even in well-studied materials, some fundamental behaviors remain unexplained. Researchers ...
Phys.org / From ship wakes to soft tissues: Exploring fluid and solid surface-wave physics
A new study by scientists in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) shows that when a pressure disturbance moves across an ultrasoft elastic material, such as a gel or a biological tissue, ...
Tech Xplore / AI models can fake visual understanding of images that don't exist
It wasn't long ago that news headlines claimed that AI might soon assist radiologists in interpreting X-rays of broken bones and analyzing mammograms. We are still far from the destination, as a new study has brought to light ...
Phys.org / A tiny twist and synthetic diamond put superconductivity on a switch, opening a new route to lossless electronics
Researchers have discovered evidence that superconductivity can be controlled by influencing the surrounding environment, a finding that may lead to more efficient electronics down the road, according to a new study published ...
Medical Xpress / Low-frequency wireless sensor tracks artery stiffening in real time with less interference
Wireless sensors used in wearable smart devices and medical equipment must be capable of detecting minute changes while maintaining high operational stability. However, existing technologies often utilize excessively high ...
